title: [CT guided 125I seeds implantation in treatment of local recurrent rectal cancer after surgery resection: analysis of 21 cases].
abstract: OBJECTIVE
  To explore the clinical value of CT guided 125I seeds implantation in the treatment of local recurrent rectal cancer after surgery resection.
  
  
  METHODS
  Twenty-one patients with local recurrent rectal cancer after surgery, 12 males and 9 females, aged 47 (35-69), with the longest diameter of 4. 2 cm (3.4 - 6.4 cm), were treated by CT guided 125I radioactive seeds implantation according to treatment planning system (TPS) or Halarism's experienced function: mCi = Da x 5. Totally, 506 seeds, 24.1 for one patient on average, were implanted. All the patients received PET-CT scan 3 months after the treatment and were followed up for 12.5 months (7-22 months).
  
  
  RESULTS
  Complete remission, partial remission, and no change were seen in 16, 3, and 2 patients respectively. All patients survived.
  
  
  CONCLUSIONS
  CT guided 125I seeds implantation is an effective methods in the treatment of local recurrent rectal cancer after surgery resection.
authors.affiliation: State Key Laboratory of Oncology in Southern China, Department of Radiology, Cancer Center, Sun Yat-sen University, Guangzhou, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhang
authors.forename: Wei-jun
authors.initials: WJ
authors.lastname: Fan
authors.forename: Jin-hua
authors.initials: JH
authors.lastname: Huang
authors.forename: Yang-kui
authors.initials: YK
authors.lastname: Gu
authors.forename: Ming
authors.initials: M
authors.lastname: Zhao
authors.forename: Li-gang
authors.initials: LG
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D001918:Brachytherapy / Q000379:methods; D003131:Combined Modality Therapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007457:Iodine Radioisotopes / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000532:radiotherapy*; D012004:Rectal Neoplasms / Q000473:pathology / Q000532:radiotherapy* / Q000601:surgery; D014057:Tomography, X-Ray Computed
chemical_list: D007457:Iodine Radioisotopes